Olympus EPOCH 650 - Figure 11-5 Partial DAC Curve with each Echo Set to 80 % FSH

DMTA-10055-01EN, Rev. A, February 2015
Software Features and Options 231
Figure 11-5 Partial DAC curve with each echo set to 80 % FSH
In the example above (Figure 11-5 on page 231), the instrument has drawn a DAC
curve with three levels from the first point to the second. You have used the AUTO
80 % function to bring the second point to 80 % full-screen height. This assures that
the point is captured accurately because amplitude resolution is better at greater echo
heights. This also pushes the first captured echo over 110 % FSH so the main DAC
curve and the −6 dB warning curve extend downward to the second point from off-
screen.
While acquiring DAC points, you have three other choices besides Add:
• Delete
Deletes the most recently captured DAC point.
•Erase
Deletes all captured DAC points (the entire curve).
• Done
Completes curve acquisition and switches to inspection mode.